1 Scope
This standard specifies the minimum requirements and test methods for magnetic resistant watches.
It is based on the simulation of an accidental exposure of a watch to a direct current magnetic field of 4800 A/m.
Annex A deals with watches designated as magnetic resistant with an additional indication of intensity of a magnetic field exceeding 4800 A/m.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 4028—1994 Timekeeping instruments 一 Symbolization of control positions (idt ISO 3158: 1976)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Designation
5 Minimum requirements
6 Test methods
7 Marking
Annex A (Normative) Magnetic resistant watches with an additional indication
